in reply to Re: Trim Two Characters On Line
in thread Trim Two Characters On Line

$line =~ s/(SUM.*)(..)/$1/
This does not seem to meet jalopez453's requirement. The strings 'SUMx' and 'SUM' both contain the substring 'SUM' and so should truncate to 'SU' and 'S' respectively, but do not.

Also, I don't understand how the sequence of operations

DB<1> $_ = 'abcSUXcdexx' DB<2> s/(SUM.*)(..)/$1/ DB<3> p abcSUMcde
comes about. A typo?

Give a man a fish:  <%-{-{-{-<

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Re^3: Trim Two Characters On Line
by LanX (Cardinal) on Oct 23, 2020 at 08:07 UTC
    Oh, I get your point. But that's how I understood the question.

    The OP should clarify.

    But you're right the pseudo code says otherwise.

    > A typo?

    Kind of, a side effect of the default page editing/cursor mode when I use the perldb inside emacs.

    Thanks fixed! :)

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery